Given that there are so many mixed racial people in the U.S., the census bureau might want to add that as a sub-category; this would be a way to still compare from year to year, but get a better portrait of the racial background of the country.

In an effort to further its competitive edge against rival Google Plus by allowing customers to divide their contacts into distinct clusters, Facebook is suggesting that its users create a separate sub-category of connections called "Close Enemies."